The Wonder Years, 8:30 PM on Ch. 22 and Ch. 9:

Dean (Elisha Williams) tries desperately to impress Keisa’s (Milan Ray) cool new boyfriend by inviting him and his friends over for a party his sister Kim (Laura Kariuki) is throwing while their parents (Dulé Hill, Saycon Sengbloh) are out for the night in the new episode “Where No Dean Has Been Before.” Predictably, things start to get out of hand just as Bill and Linda are due home, forcing Dean to make a painful admission.